#!/usr/bin/node

const user = {
  name:'邢宇',
  age: 20,
  qq:  '1903624693'
};

const log = console.log;

log('name: %s' , user.name);
log('age:  %d' , user.age);
log('user: %j' , user);

log('qq: %s',user.qq);
log('qq: ',user.qq);
log('qq: '+user.qq);
log(`qq: ${user.qq}`);

console.error('Error:something wrong!');

